Unverified90% confidenceDecision RuleTime unknown
缺铁性黄化（新叶叶脉绿、叶肉黄，从顶部新叶开始）应选螯合铁EDTA-Fe或EDDHA-Fe，而非硫酸亚铁，螯合态在偏碱性土/水质硬地区不易失效
1
Sources
90%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
Unverified通用型水培营养液需含完整的中微量元素（尤其是螯合铁EDTA-Fe），缺铁会导致新叶发黄（缺铁性黄化），只含氮磷钾的复合肥不能用于长期水培83% similarUnverified螯合铁选EDTA-Fe适用于土壤pH≤6.5的酸性环境，pH>6.5时EDTA会释放铁并被固定失效，此时应选DTPA-Fe（稳定至pH7.5）或EDDHA-Fe（稳定至pH9）79% similarUnverified缺铁黄化（新叶发黄叶脉仍绿）才需补铁；若老叶先黄多为缺氮/镁，此时用铁肥无效反而增加叶片负担79% similarUnverified硫酸亚铁（FeSO4）不属于螯合铁，叶面喷施后遇空气快速氧化成三价铁沉淀，吸收率低且易在叶面留锈斑，追求速效应选螯合态而非硫酸亚铁77% similarUnverified铁形态优先选择NaFeEDTA（乙二胺四乙酸铁钠）或富马酸亚铁，前者吸收率高且不易受植酸干扰；避免只含焦磷酸铁的产品，其溶解度低吸收较差75% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/359400API
curl https://kongchang.com/api/v1/knowledge/claims/359400MCP
get_claim(id=359400)